--- a/src/mkisofs.c
+++ b/src/mkisofs.c
@@ -91,13 +91,13 @@
       }
     }
 
-    Lextra = g_strdup_printf("%s %s -iso-level %s %s%s %s%s", Lrockridge == TRUE ? "-r" : "", Ljoliet ? "-J" : "", Lisolevel,
+    Lextra = g_strdup_printf("%s %s -iso-level %s %s%s %s%s", Lrockridge == TRUE ? "-r" : "", Ljoliet ? "-J -joliet-long" : "", Lisolevel,
         Lmediainfo ? "-C " : "", Lmediainfo ? Lmediainfo : "", Lmediainfo && Ldevchar ? "-M " : "",
         Lmediainfo && Ldevchar ? Ldevchar : "");
     g_free(Lmediainfo);
     g_free(Lisolevel);
   } else {  /* data dvd */
-    Lextra = g_strdup("-r -J");
+    Lextra = g_strdup("-r -J -joliet-long");
   }
 
   /* charsets a utiliser pour la creation de l'image iso */